Bührer GM-29 Super-Six (A) or International Harvester 786?
Which should you choose?
On performance, every comparable figure that differs favours the International Harvester 786: hydraulic flow. It is also ahead on top speed and PTO speeds.
- The International Harvester 786 suits PTO-driven implements (mowers, balers, pumps) better on this data: offers 1000 rpm.
- The International Harvester 786 suits loader and hydraulic implement work better on this data: 142% (26.7 L/min / 7.1 gpm) more hydraulic flow.
- The International Harvester 786 suits road haulage better on this data: 36% (8.0 km/h / 5.0 mph) more top speed.
Generated by rule set compare@4 from the figures on the side-by-side table, allowed by route “the same stated configuration”. Measured figures are compared only with measured, claimed only with claimed, at the same test condition; differences within each figure’s tolerance are not called.
What decides it, question by question?
| Question | GM-29 Super-Six (A) | 786 | Call |
|---|---|---|---|
| Which puts more power through the PTO shaft? | 59.1 kW (79.2 hp)Traktorenlexikon, “Bührer GM 29 SUPER-SIX (A)” | 57.8 kW (77.5 hp)Traktorenlexikon, “IHC 786” | EvenEven on power at the PTO shaft (both power at the PTO, claimed): the difference is under the 10% threshold for claimed figures, too small to call. |
| Which turns a litre of fuel into more work at the shaft? | — | — | No figureNo call on fuel efficiency at the shaft: no figure on record for the GM-29 Super-Six (A) and the 786. |
| Which pulls harder at the drawbar? | — | — | No figureNo call on drawbar power: no figure on record for the GM-29 Super-Six (A) and the 786. |
| Which pumps more oil for implements? | 18.8 L/min (5.0 gpm)Traktorenlexikon, “Bührer GM 29 SUPER-SIX (A)” | 45.5 L/min (12.0 gpm)Traktorenlexikon, “IHC 786” | AheadThe International Harvester 786 has 142% more hydraulic flow (26.7 L/min / 7.1 gpm) than the Bührer GM-29 Super-Six (A) (both pump flow, as stated by the source). |
| Which lifts more on the three-point hitch? | 2,450 kg (5,401 lb)Traktorenlexikon, “Bührer GM 29 SUPER-SIX (A)” | — | No figureNo call on three-point lift: no figure on record for the 786. |
| Which is heavier, for traction? | 2,810 kg (6,195 lb)Traktorenlexikon, “Bührer GM 29 SUPER-SIX (A)” | 5,257 kg (11,590 lb)Traktorenlexikon, “IHC 786” | Ahead (a fact, not an advantage)The International Harvester 786 is 87% heavier (2,447 kg / 5,395 lb) than the Bührer GM-29 Super-Six (A) (both unladen weight, as stated by the source). |
| Which may carry more ballast and load? | — | — | No figureNo call on maximum permissible mass: no figure on record for the GM-29 Super-Six (A) and the 786. |
| Which has the wider choice of gears? | 15Traktorenlexikon, “Bührer GM 29 SUPER-SIX (A)” | 8 to 16Traktorenlexikon, “IHC 786” | EvenEven on forward gears (both forward gears, as stated by the source): the figures vary by configuration and the ranges overlap. |
| Which offers a creeper range? | — | — | No figureNo call on a creeper range: not stated for the GM-29 Super-Six (A) and the 786. |
| Which is faster on the road? | 22 km/h (13.7 mph)Traktorenlexikon, “Bührer GM 29 SUPER-SIX (A)” | 30 km/h (18.6 mph)Traktorenlexikon, “IHC 786” | AheadThe International Harvester 786 has 36% more top speed (8.0 km/h / 5.0 mph) than the Bührer GM-29 Super-Six (A) (both top speed forward, as stated by the source). |
| Which offers more PTO speeds? | 540 rpmTraktorenlexikon, “Bührer GM 29 SUPER-SIX (A)” | 540/1000 rpmTraktorenlexikon, “IHC 786” | AheadThe International Harvester 786 offers 1000 rpm at the PTO, which the Bührer GM-29 Super-Six (A) does not (as stated by the sources). |
| Which PTO runs independently of the ground drive? | independentTraktorenlexikon, “Bührer GM 29 SUPER-SIX (A)” | — | No figureNo call on PTO independence: not stated for the 786. |
| Which drives on both axles? | Two-wheel or four-wheel driveTraktorenlexikon, “Bührer GM 29 SUPER-SIX (A)” | Two-wheel or four-wheel driveTraktorenlexikon, “IHC 786” | EvenEven on drive: every machine is available with four-wheel drive. |
| Which is newer, and what about parts? | 1968–1975 | 1980–1981 | Ahead (a fact, not an advantage)The International Harvester 786 is newer: production began 12 years later. We hold no parts-availability data, so there is no call on parts. |
What does this mean in plain words?
- The International Harvester 786 has 142% more hydraulic flow (26.7 L/min / 7.1 gpm) than the Bührer GM-29 Super-Six (A) (both pump flow, as stated by the source).
- The International Harvester 786 is 87% heavier (2,447 kg / 5,395 lb) than the Bührer GM-29 Super-Six (A) (both unladen weight, as stated by the source).
- The International Harvester 786 has 36% more top speed (8.0 km/h / 5.0 mph) than the Bührer GM-29 Super-Six (A) (both top speed forward, as stated by the source).
- The International Harvester 786 offers 1000 rpm at the PTO, which the Bührer GM-29 Super-Six (A) does not (as stated by the sources).
- The International Harvester 786 is newer: production began 12 years later. We hold no parts-availability data, so there is no call on parts.
- Even on power at the PTO shaft (both power at the PTO, claimed): the difference is under the 10% threshold for claimed figures, too small to call.
- Even on forward gears (both forward gears, as stated by the source): the figures vary by configuration and the ranges overlap.
- Even on drive: every machine is available with four-wheel drive.
- No figure on record for every machine, so no call on: fuel efficiency at the shaft, drawbar power, three-point lift, maximum permissible mass, a creeper range and PTO independence.
← Every figure for both machines, side by side, with sources